EUP9261
EUP9261 is LI-ION/POLYMER ONE CELL PROTECTOR manufactured by Eutech Microelectronics.
DESCRIPTION
The EUP9261 series are lithium-ion/lithium polymer rechargeable battery protection ICs incorporating high-accuracy voltage detection circuit and delay circuit. The EUP9261 series are suitable for protection of single-cell lithium-ion/lithium polymer battery packs from overcharge, overdischarge and overcurrent.
FEATURES z z Absolute maximum rating of 30V for the charger connection pins(VM and CO) Highly accurate voltage detector………….Overcharge detection (Topt=+25°C) (Topt=-5 to 55°C)
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±25m V ±30m V ±25m V ±50m V ±15m V ±100m V
Overcharge hysteresis Overdischarge detection Overcurrent 1 detection Overcurrent 2 detection z
Variety of detector………………………… Overcharge detection Overcharge hysteresis Overdischarge detection Overdischarge hysteresis Overcurrent 1 detection Overcurrent 2 detection
3.9V-4.4V step of 5m V 0.0V-0.4V- 1 step of 50m V 2.0V-3.0V step of 10m V 0.0V-0.7V- 2 step of 100m V 0.03V-0.3V step of 10m V 0.5V
- 1 Overcharge release voltage=Over detection voltage-Overcharge hysteresis voltage
- 2 Overdischarge release voltage = Overdischarge detection voltage-Overdischarge hysteresis voltage. z z z z z
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Delay times internally generated. Accuracy : ±30%. (overcharge: t CU, overdischarge: t DL, overcurrent 1: tl OV1, overcurrent 2: tl OV2) Three-step overcurrent detection circuit is included.(overcurrent 1,overcurrent 2 and load short
- circuiting) Charger detection function and abnormal charge current detection function, included. 0V-battery charge option: Acceptable/Unacceptable. Low current consumption Operation: 3.0µA typ. 6µA max. Power-down 0.1µA max. DP pin……………………………………...At VSS level, delay circuit is disabled. Tie a 300kΩ resistor to VSS, delay time of all items expect short-circuit can be reduced. Wide operating temperature range: -40°C to + 85°C. Small package: SOT-23-6, STDFN-6(2mm- 2mm) Ro HS pliant and 100% lead (Pb)-free z z z z
APPLICATIONS z Lithium-ion rechargeable battery packs. z Lithium polymer rechargeable battery packs.
DS9261...
